I have a bit of personal history with this place. And it is brief. I've been trying to get to it several times with no success.
Tried to get to it back in 2006. Came too late it was closed and our tour was moving on from Rome.
2010. No luck again. Find the doors closed.
2011. Nope. Find a sign saying it is closed for 3 weeks. (Vacation)
2013. Success! Kinda. I called ahead to reserve their last two boxes of La Escepcion Selectos Finos. On the way down, my cell service craps out, so I can't confirm with them. My wife and I find the Fincato by the Piazza de al Colonna. I